- Mark Alley
On 3/14/2024 3:38 PM, Todd Herr wrote:
On Thu, Mar 14, 2024 at 4:34 PM Scott Kitterman <skl...@kitterman.com>
wrote:
I think this is correct. I think it's obviously enough correct
that I'm surprised anyone was confused.
Do we know what the theory was that led people to think otherwise?
Seems to me we don't really need this, but maybe there's a reason.
The reasons given were:
1. https://www.rfc-editor.org/rfc/rfc5863#section-4.1
2. https://datatracker.ietf.org/doc/html/rfc6376#section-7.5
3. Neither RFC 7489 nor DMARCbis contain the phrase "CNAME", so if
it's not explicitly mentioned...
Granted, the first two citations are in regards to DKIM records, not
DMARC records, but those were the reasons given.
Couldn't hurt to clarify explicitly, I'm for it. Domain owners have been
using CNAMEs with DMARC TXT RRs pretty much since its inception.
- Mark Alley
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